do a (someone)

To act as someone else has or usually does. Sally did a Mom and hit the trash cans while backing out of the driveway. Don't do a me and sign the contract before you read it—I'm still paying for that mistake. A: "Wait, did I fall asleep?" B: "Yep, you did a Dad and passed out five minutes into the movie."

do a somebody

(informal) do or behave as somebody did or would do: Now don’t go and do a Mr. Carpenter on us. He told us he was leaving only three weeks before he went, and it took us months to find a replacement.